Betel chewing in ceylon.

@article{Senewiratne1973BetelCI,
  title={Betel chewing in ceylon.},
  author={B Senewiratne and Chris G Uragoda},
  journal={The American journal of tropical medicine and hygiene},
  year={1973},
  volume={22 3},
  pages={418-22}
}

Topic